Strip-shaped part pitch changing jig and strip-shaped part double-station automatic pitch changing mechanism

Abstract

The utility model discloses a strip-shaped part pitch changing jig and a strip-shaped part double-station automatic pitch changing mechanism, the strip-shaped part double-station automatic pitch changing mechanism comprises a base, two pitch changing stations and at least two guide rods are arranged on the base side by side, and each pitch changing station is provided with a first driving piece and a plurality of pitch changing jigs; the variable-pitch jigs are installed on the guide rod in a reciprocating sliding mode, every two adjacent variable-pitch jigs on each variable-pitch station are in transmission connection through a transmission assembly, the multiple variable-pitch jigs comprise an active variable-pitch jig, and the driving end of the first driving piece is connected with the active variable-pitch jigs; and the first driving piece drives the corresponding active variable-pitch jigs to move so as to drive the other variable-pitch jigs to be sequentially separated or combined according to a preset interval. The double-station automatic pitch changing mechanism for the strip-shaped parts is compact in structure and stable and reliable in movement; and moreover, the variable-pitch precision is improved, and it is guaranteed that the carrying mechanism accurately takes and places the strip-shaped parts.

Description

Technical Field

[0001] The present application relates to the technical field of automation equipment, and particularly relates to a strip part variable pitch jig and a strip part double-station automatic variable pitch mechanism. Background Art

[0002] The so-called "3C products" is a collective term for computer products, communication products, and consumer electronic products, such as computers, tablet computers, mobile phones, or digital audio players. Strip parts are usually used on 3C products (such as the frames of mobile phones and laptops). During the processing of these strip parts, different material pitches may be required in different processing procedures, which requires the design of a dedicated variable pitch mechanism. There are many types of existing variable pitch mechanisms. Usually, multiple strip parts are placed on the same support, and then the variable pitch is implemented; in actual applications, when multiple strip parts are placed on the support, they may shift, resulting in very poor variable pitch accuracy and affecting the smooth handling of multiple strip parts after variable pitch. Summary of the Utility Model

[0003] The purpose of the present application is to provide a strip part variable pitch jig and a strip part double-station automatic variable pitch mechanism. Different material pitches may be required in different processing procedures, but most of them have problems of complex structure and high cost. And during the variable pitch process, a dedicated variable pitch mechanism needs to be designed to solve the problems of complex structure and high cost.

[0004] To achieve this purpose, the present application adopts the following technical solutions:

[0005] A strip part variable pitch jig includes a jig body. At least two assembly holes for installing the jig are provided on the jig body. A bearing surface for bearing strip parts is arranged on the end face of the jig body. A positioning member is arranged at the first end of the bearing surface on the jig body, and the positioning member is configured to position the first end of the strip part on the bearing surface in the first direction; an unlocking assembly is arranged at the second end of the bearing surface on the jig body, and the unlocking assembly is configured to press against or release the second end of the strip part on the bearing surface in the first direction, so as to cooperate with the positioning member to fix or release the strip part relative to the jig body.

[0006] Optionally, the unlocking assembly includes a locking block, an elastic member, and an operating rod, where: the locking block is installed on the jig body so as to be reciprocally movable in the first direction, the elastic member is arranged between the locking block and the jig body, the elastic member is configured to provide an elastic force for the locking block to press against the second end of the strip part on the bearing surface, and the operating rod is connected to the locking block; pulling the operating rod outwards drives the locking block to move away from the strip part on the bearing surface against the elastic force of the elastic member, so as to release the second end of the strip part on the bearing surface, and further release the strip part relative to the jig body.

[0007] Optionally, a plurality of process columns are arranged at intervals on the bottom surface of the strip-shaped part, and an avoidance groove for avoiding the process columns is opened on the bearing surface.

[0008] Optionally, a limiting block is installed in the avoidance groove, a limiting groove is provided on the limiting block, and part or all of the process column is located in the limiting groove to limit the strip-shaped part in the second direction.

[0009] A double-station automatic pitch-changing mechanism for a strip-shaped part, comprising a base, wherein: two pitch-changing stations are arranged side by side on the base in a second direction, at least two guide rods penetrating the two pitch-changing stations are arranged on the base, a plurality of pitch-changing jigs of any one of the above items are arranged on each pitch-changing station, a strip-shaped part is fixed on each pitch-changing jig, each assembly hole corresponds to a guide rod, the strip-shaped part pitch-changing jig can be reciprocatingly slidably mounted on the guide rod along the second direction through the assembly hole, two adjacent pitch-changing jigs on each pitch-changing station are connected by a transmission assembly, and the plurality of pitch-changing jigs on each pitch-changing station include a main The active variable distance jig is the outermost variable distance jig on the corresponding variable distance station; the two adjacent variable distance jigs on the two variable distance stations are connected by a connecting piece, and a positioning block is arranged between the two variable distance stations; each variable distance station is provided with a first driving member, the fixed end of the first driving member is connected to the corresponding variable distance station, the driving end of the first driving member is connected to the active variable distance jig on the corresponding variable distance station, and the first driving member is configured to drive the active variable distance jig on the corresponding variable distance station to move back and forth along the second direction, so as to drive a plurality of variable distance jigs on the corresponding variable distance station to be separated in sequence or closely merged in sequence according to a preset spacing.

[0010] Optionally, the double-station automatic pitch-changing mechanism for strip parts also includes a second driving member, which is arranged on the outside of the base in the second direction. The second driving member includes an unlocking cylinder and an unlocking member. The fixed end of the unlocking cylinder is installed on the base, and the driving end of the unlocking cylinder is connected to the unlocking member. The unlocking cylinder is configured to drive the unlocking member to reciprocate along the first direction; a T-slot extending along the second direction is provided on the unlocking member, and a T-head is provided at the end of the operating rod, and the T-heads of the operating rods of all the strip part pitch-changing fixtures on the two pitch-changing stations are inserted into the T-slot; when unlocking, the unlocking cylinder drives the unlocking member to move away from the base along the first direction, so as to pull the operating rods of all the pitch-changing fixtures outward through the unlocking member, thereby loosening the strip parts on all the pitch-changing fixtures on the two pitch-changing stations.

[0011] Optionally, the transmission assembly includes a transmission plate and a limit pin, the transmission plate is fixed on the first distance changing jig, the limit pin is fixed on the second distance changing jig, the first distance changing jig and the second distance changing jig are two adjacent strip-shaped part distance changing jigs, a waist-shaped hole extending along the second direction is opened on the transmission plate, the limit pin is located in the waist-shaped hole, and the length of each waist-shaped hole on the transmission plate is the same.

[0012] Optionally, two assembly holes are provided on both the first variable pitch jig and the second variable pitch jig. Guide sleeves are installed in the assembly holes of the first variable pitch jig and the second variable pitch jig. There are two groups of guide rods, and each group of guide rods includes two guide rods. Among them, the first group of guide rods is located above the second group of guide rods, and the distance between the first group of guide rods located above is smaller than the distance between the second group of guide rods located below; the first variable pitch jig is installed on the group of guide rods located above through the guide sleeve, and the second variable pitch jig is installed on the group of guide rods located below through the guide sleeve. An avoidance hole for the group of guide rods located above to pass through is also provided on the jig body of the second variable pitch jig.

[0013] Optionally, the two variable pitch stations share a positioning member, and a gap is formed between the two variable pitch stations through the positioning member to facilitate the handling mechanism to pick up and place the strip-shaped parts on the two variable pitch stations at the same time.

[0014] Optionally, the base includes a base plate and two vertical plates. The base plate is fixedly connected to the first driving member. The vertical plates are fixedly arranged at both ends of the base plate at intervals along the second direction. Both ends of the guide rod are fixedly connected to the two vertical plates respectively. The fixed end of the first driving member is connected to the base plate and is located below the guide rod. Detection devices are installed on both vertical plates, and the detection devices are configured to detect whether there are strip-shaped parts on the corresponding variable pitch stations.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1) It can realize the automatic opening and closing of multiple variable pitch jigs, and then implement variable pitch for multiple strip-shaped parts. The variable pitch accuracy is high, which is beneficial to the efficient flow of strip-shaped parts during the processing process;

[0017] 2) Two variable pitch stations are provided, and automatic variable pitch opening or closing can be simultaneously implemented for the strip jigs on the two variable pitch stations at one time, improving the work efficiency;

[0018] 3) By arranging transmission members with the same moving stroke between two adjacent variable pitch jigs on the same variable pitch station, the consistency of the variable pitch of the variable pitch jigs is ensured. The design is ingenious and the operation is stable and reliable.

[0019] 4) A positioning block is shared between the two variable pitch stations. While forming a gap convenient for the handling mechanism to pick up and place strip-shaped parts between the two variable pitch stations, the overall structure is simplified and the cost is reduced.

[0020] 5) Through the cooperation of the unlocking cylinder and the unlocking member, it is possible to realize the synchronous automatic unlocking or locking of all strip-shaped parts on the two variable pitch stations, saving manpower and having high work efficiency. Description of the Drawings

[0021] To more clearly illustrate and understand the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the background art and the description of the embodiments of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained according to the content of the embodiments of the present application and these accompanying drawings.

[0022] Figure 1 is a three-dimensional structural schematic diagram of a strip part variable pitch fixture provided by an embodiment of the present application;

[0023] Figure 2 is Figure 1 a partial enlarged view of part A in

[0024] Figure 3 is a three-dimensional structural schematic diagram of the combined variable pitch fixture of a double-station automatic variable pitch mechanism for strip parts provided by an embodiment of the present application;

[0025] Figure 4 is a three-dimensional structural schematic diagram of the opened variable pitch fixture of a double-station automatic variable pitch mechanism for strip parts provided by an embodiment of the present application;

[0026] Figure 5 is a top view schematic diagram of a double-station automatic variable pitch mechanism for strip parts provided by an embodiment of the present application;

[0027] Figure 6 is Figure 4 a partial enlarged view of part B in

[0028] Figure 7 is a three-dimensional structural schematic diagram of the second driving member of a double-station automatic variable pitch mechanism for strip parts provided by an embodiment of the present application. Detailed implementation manners

[0029] For the convenience of understanding the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the description of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] Please refer to Figures 1 to 7 As shown, a bar-shaped part variable pitch jig 10 provided by an embodiment of the present application includes a jig body 11. At least two assembly holes 110 for installing the variable pitch jig 10 are opened on the jig body 11. An end face of the jig body 11 is provided with a bearing surface 111 for bearing the bar-shaped part 20. A positioning member 112 is provided at a first end of the bearing surface 111 on the jig body 11. The positioning member 112 is configured to position a first end of the bar-shaped part 20 on the bearing surface 111 in a first direction ( Figure 1 the X direction in). An unlocking assembly 12 is provided at a second end of the bearing surface 111 on the jig body 11. The unlocking assembly 12 is configured to press against or release a second end of the bar-shaped part 20 on the bearing surface 111 in the first direction to cooperate with the positioning member 112 to fix or release the bar-shaped part 20 relative to the jig body 11.

[0031] Through the cooperation of the bearing surface 111, the positioning member 112 and the unlocking assembly 12, the rapid disassembly and assembly of the bar-shaped part 20 relative to the jig body 11 are realized, the operation is convenient, and the fixation is stable and reliable; by providing the assembly holes 110 on the jig body 11, the assembly of the variable pitch jig 10 is realized.

[0032] In one embodiment, the unlocking component 12 includes a locking block 120, an elastic member 121, and an operating rod 122, where: The locking block 120 is mounted on the fixture body 11 so as to be reciprocally movable in a first direction. The elastic member 121 is disposed between the locking block 120 and the fixture body 11. The elastic member 121 is configured to provide an elastic force for the locking block 120 to press against the second end of the bar-shaped part 20 on the bearing surface 111. The operating rod 122 is connected to the locking block 120. Pull the operating rod 122 outward, and drive the locking block 120 to move away from the bar-shaped part 20 on the bearing surface 111 against the elastic force of the elastic member 121 through the operating rod 122, so as to release the second end of the bar-shaped part 20 on the bearing surface 111, and further release the bar-shaped part 20 relative to the fixture body 11.

[0033] Pull outward through the operating rod 122 to drive the locking block 120 to move away from the positioning member 112 against the elastic force of the elastic member 121, so as to facilitate placing the bar-shaped part 20 on the fixture body 11; then release the operating rod 122, and push the locking block 120 to abut against the end of the bar-shaped part 20 through the elastic force of the elastic member 121, and cooperate with the positioning member 112 to relatively fix the bar-shaped part 20 in the first direction with respect to the fixture body 11; The overall structure is simple, easy to operate, and the positioning is stable and reliable.

[0034] In one embodiment, a plurality of process posts 21 are spaced apart on the bottom surface of the bar-shaped part 20, and a relief groove 113 for avoiding the process posts 21 is formed on the bearing surface 111.

[0035] By providing the relief groove 113 on the bearing surface 111, the process posts 21 on the bar-shaped part are avoided.

[0036] In one embodiment, a limit block 114 is installed in the relief groove 113, and a limit groove 115 is formed on the limit block 114. Some or all of the process posts 21 are located in the limit groove 115 to limit the bar-shaped part 20 in a second direction ( Figure 1 the Y direction in this case).

[0037] Specifically, the first direction is perpendicular to the second direction, and the installation position of the limit block 114 in the first direction in the relief groove 113 is adjustable.

[0038] By providing the limit block 114 on the bearing surface 111 and providing the limit groove 115 on the limit block 114, the cooperation between the process posts 21 and the limit groove 115 can relatively fix the bar-shaped part 20 in the second direction with respect to the fixture body 11. The design is ingenious and further improves the stability and reliability of the positioning.

[0039] The embodiment of the present application also provides a double-station automatic pitch-changing mechanism for strip parts, which includes a base 30, wherein: two pitch-changing stations are arranged side by side on the base 30 in the second direction, at least two guide rods 31 penetrating the two pitch-changing stations are arranged on the base 30, and a plurality of the above-mentioned pitch-changing jigs 10 are arranged on each pitch-changing station, a strip part 20 is fixed on each pitch-changing jig 10, each assembly hole 110 corresponds to a guide rod 31, and the pitch-changing jig 10 can be reciprocatingly slidably mounted on the guide rod 31 along the second direction through the assembly hole 110, and the two adjacent pitch-changing jigs 10 on each pitch-changing station are connected by a transmission assembly 13, and the plurality of pitch-changing jigs 10 on each pitch-changing station include The invention comprises an active variable distance fixture 14, which is the outermost variable distance fixture 10 on the corresponding variable distance station; two adjacent variable distance fixtures 10 on two variable distance stations are connected by a connecting member 15, and a positioning block 16 is arranged between the two variable distance stations; a first driving member 40 is arranged on each variable distance station, a fixed end of the first driving member 40 is connected to the corresponding variable distance station, and a driving end of the first driving member 40 is connected to the active variable distance fixture 14 on the corresponding variable distance station, and the first driving member 40 is configured to drive the active variable distance fixture 14 on the corresponding variable distance station to move back and forth along the second direction, so as to drive a plurality of variable distance fixtures 10 on the corresponding variable distance station to be separated in sequence or closely merged in sequence according to a preset spacing.

[0040] Specifically, the first driving member 40 is a cylinder.

[0041] By setting up two variable distance stations, multiple variable distance jigs 10 on the two stations can be automatically opened or closed at the same time, and the working efficiency is high; the active variable distance jig 14 on one of the variable distance stations is driven by the first driving member 40 to move along the second direction away from the positioning block 16, and then the active variable distance jig 14 drives the adjacent variable distance jig 10 to move in the same direction through the transmission assembly 13 until the variable distance jig 10 close to the positioning block 16 on this variable distance station moves, and the variable distance jig 10 close to the positioning block 16 on another variable distance station is driven to move toward the positioning block 16 through the connecting member 15 until it touches the positioning block 16. When the variable distance jig 10 on the original variable distance station stops opening, the variable distance jig 10 on the original variable distance station is evenly distributed on the guide rod 31.

[0042] In one embodiment, the double-station automatic variable pitch mechanism for bar-shaped parts further includes a second driving member 50. The second driving member 50 is arranged outside the base 30 in the second direction. The second driving member includes an unlocking cylinder 51 and an unlocking member 52. The fixed end of the unlocking cylinder 51 is mounted on the base, and the driving end of the unlocking cylinder 51 is connected to the unlocking member 52. The unlocking cylinder 51 is configured to drive the unlocking member 52 to reciprocate along the first direction; a T-shaped groove 53 extending along the second direction is formed in the unlocking member 52, and a T-shaped head 123 is arranged at the end of the operating rod 122. The T-shaped heads 123 of the operating rods 122 of all the variable pitch fixtures 10 on the two variable pitch stations are inserted into the T-shaped groove 53; when unlocking, the unlocking cylinder 51 drives the unlocking member 52 to move away from the base 30 along the first direction, so as to pull the operating rods 122 of all the variable pitch fixtures 10 outward through the unlocking member 52, and then loosen the bar-shaped parts 20 on all the variable pitch fixtures 10 on the two variable pitch stations.

[0043] By placing the T-shaped heads 123 of the operating rods 122 in the unlocking assemblies 12 of all the variable pitch fixtures 10 into the T-shaped groove 43, on the one hand, the operating rods 122 can be adjusted uniformly, and on the other hand, the movement of the variable pitch fixtures 10 in the second direction is initially guided; by driving the unlocking member 52 to reciprocate along the first direction through the unlocking cylinder 51, the operating rod 122 can be driven to reciprocate along the first direction, and then the locking block 120 can be driven to approach or move away from the bar-shaped part 20 on the variable pitch fixture 10 at the same time, so that the bar-shaped part 20 is loosened or fixed on the bearing surface 111 of the variable pitch fixture 10; through the cooperation of the unlocking cylinder 51 and the unlocking member 52, automatic unlocking or locking of all the bar-shaped parts 20 on the two variable pitch stations can be realized synchronously, saving manpower and having high working efficiency.

[0044] In one embodiment, the transmission assembly 13 includes a transmission plate 130 and a limit pin 131. The transmission plate 130 is fixed on the first variable pitch fixture 100, and the limit pin 131 is fixed on the second variable pitch fixture 101. The first variable pitch fixture 100 and the second variable pitch fixture 101 are two adjacent variable pitch fixtures 10. A waist-shaped hole 132 extending along the second direction is formed in the transmission plate 130, and the limit pin 131 is located in the waist-shaped hole 132.

[0045] By connecting the first variable pitch fixture 100 and the second variable pitch fixture 101 with the transmission assembly 13, when the first variable pitch fixture 100 moves away from the positioning block 16 along the guide rod 31, the limit pin 131 on the second variable pitch fixture 101 slides from the first end fixed by the transmission plate 130 in the waist-shaped hole 132 in the direction of the positioning block 16 until it stops at the other end of the waist-shaped hole 132. At this time, the first variable pitch fixture 100 drives the second variable pitch fixture 101 to move in the same direction through the connecting plate 15; ensuring the consistency of the variable pitch of the variable pitch fixture 10, with a clever design and stable and reliable operation.

[0046] In one embodiment, two assembly holes 110 are provided on both the first pitch-changing jig 100 and the second pitch-changing jig 101. Guide sleeves 112 are installed in the assembly holes 110 of the first pitch-changing jig 100 and the second pitch-changing jig 101. There are two sets of guide rods 31, and each set of guide rods 31 includes two guide rods 31. Among them, the first set of guide rods 310 is located above the second set of guide rods 311, and the distance between the first set of guide rods 310 located above is smaller than the distance between the second set of guide rods 311 located below; the first pitch-changing jig 100 is installed on the first set of guide rods 310 located above through the guide sleeve 112, and the second pitch-changing jig 101 is installed on the second set of guide rods 311 located below through the guide sleeve. An avoidance hole 113 for the first set of guide rods 310 located above to pass through is also provided on the jig body 11 of the second pitch-changing jig 101.

[0047] By providing the guide sleeve 112 in the assembly hole 110, the friction between the assembly hole 110 and the guide rod 31 is reduced, the safety of the assembly hole 110 is protected, and the service life of the strip part double-station automatic pitch-changing mechanism is increased; by providing the avoidance hole 113 on the second pitch-changing jig 101, the guide sleeve 112 can enter the avoidance hole 113, and then the first pitch-changing jig 100 and the second pitch-changing jig 101 can be closely attached; by providing the first set of guide rods 310 and the second set of guide rods 311, on the one hand, after the first pitch-changing jig 100 and the second pitch-changing jig 101 are staggered on the guide rod 31, the guide sleeve 112 can be prevented from touching the adjacent pitch-changing jig 10, so that the pitch-changing jigs 10 are closely attached, and on the other hand, support and guidance are provided for the pitch-changing jig 10 to move along the first direction at the pitch-changing station, and the overall structure is more compact.

[0048] In one embodiment, the two pitch-changing stations share a positioning member 16, and a gap 160 is formed between the two pitch-changing stations through the positioning member 16 to facilitate the handling mechanism to pick up and place the strip parts on the two pitch-changing stations at the same time.

[0049] By providing that the two pitch-changing stations share a positioning block 16, while forming a gap 160 between the two pitch-changing stations to facilitate the handling mechanism to pick up and place the strip parts, the overall structure is simplified and the cost is reduced.

[0050] In one embodiment, the base 30 includes a base plate 300 and two vertical plates 301. The base plate 300 is fixedly connected to the first driving member 30. The vertical plates 301 are fixedly arranged at both ends of the base plate 300 at intervals along the second direction. Both ends of the guide rod 31 are respectively fixedly connected to the two vertical plates 301. The fixed end of the first driving member 40 is connected to the base plate 300 and is located below the guide rod 31. Detection devices 60 are installed on both vertical plates 301. The detection devices 60 are configured to detect whether there are strip-shaped parts 20 at the corresponding variable pitch stations.

[0051] By vertically fixing the two vertical plates 301 at both ends of the base plate 300, on the one hand, it provides support for the guide rod 31, and on the other hand, it ensures the overall stability of the base 30. At the same time, the two variable pitch stations and the first driving member 40 are installed between the two vertical plates, making the overall structure more compact and occupying less space.

[0052] The specific working principle of the above strip-shaped part double-station automatic variable pitch mechanism is as follows:

[0053] When performing variable pitch opening operations on multiple strip-shaped parts 20:

[0054] In the initial state, several variable pitch fixtures 10 at the two variable pitch stations are in a combined state (as shown in Figure 3 ), the second driving member 50 works to unlock all the variable pitch fixtures 20. The handling mechanism transports multiple strip-shaped parts 20 to the corresponding variable pitch fixtures 10. The second driving member 50 fixes the strip-shaped parts 20 on all the variable pitch fixtures 10. The first driving members 40 at the two variable pitch stations work to move the active variable pitch fixture 14 along the guide rod 31 away from the positioning block 16. Then, the active variable pitch fixture 14 drives the adjacent variable pitch fixtures 10 to move in the same direction through the transmission assembly 13. When the variable pitch fixture 10 adjacent to the positioning block 16 at this variable pitch station moves, it drives the variable pitch fixture 10 close to the positioning block 16 at the other variable pitch station to move towards the positioning block 16 through the connecting member 15. When it touches the positioning block 16, the opening movement of the variable pitch fixture 10 at the original variable pitch station stops. At this time, the variable pitch fixtures 10 at the original variable pitch station are evenly distributed on the guide rod 31, realizing the opening of the variable pitch fixtures 10.

[0055] When performing variable pitch closing operations on multiple strip-shaped parts 20:

[0056] In the initial state, several variable pitch fixtures 10 at the two variable pitch stations are in an open state (as shown in Figure 4As shown in the figure, the first driving members 40 at the two variable pitch stations operate to move the active variable pitch jig 14 along the guide rod 31 towards the positioning block 16. Subsequently, the active variable pitch jig 14 successively approaches the adjacent variable pitch jigs 10 at the same variable pitch station and drives the adjacent variable pitch jigs 10 to move in the same direction together until the variable pitch jig 10 at the end close to the positioning block 16 at the variable pitch station touches the positioning block 16. At this time, all the variable pitch jigs 10 are arranged close to the positioning block 16 and are closely arranged on the guide rod 31.

[0057] The above embodiments only illustrate the basic principles and characteristics of the present application. The present application is not limited by the above examples. Without departing from the spirit and scope of the present application, there are various changes and modifications to the present application, and these changes and modifications all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A variable pitch fixture for strip parts, characterized in that: The strip-shaped part pitch-changing jig comprises a jig body, the jig body is provided with at least two assembly holes for installing the pitch-changing jig, the end surface of the jig body is provided with a bearing surface for bearing the strip-shaped part, the jig body is provided with a positioning member at a first end of the bearing surface, and the positioning member is configured to position the first end of the strip-shaped part on the bearing surface in a first direction; An unlocking component is provided on the variable-distance jig body at the second end of the bearing surface, and the unlocking component is configured to tighten or loosen the second end of the strip part on the bearing surface in the first direction to cooperate with the positioning piece to fix or loosen the strip part relative to the jig body.

2. The strip-shaped parts pitch-changing fixture according to claim 1, characterized in that: The unlocking assembly comprises a locking block, an elastic member and an operating rod, wherein: The locking block is mounted on the jig body so as to be reciprocatingly movable along a first direction, the elastic member is disposed between the locking block and the jig body, the elastic member is configured to provide elastic force for the locking block to press against the second end of the strip-shaped part on the bearing surface, and the operating rod is connected to the locking block; The operating rod is pulled outward, and the locking block is driven by the operating rod to overcome the elastic force of the elastic member and move away from the strip part on the bearing surface, so as to loosen the second end of the strip part on the bearing surface, thereby loosening the strip part relative to the fixture body.

3. The strip-shaped part pitch-changing fixture according to claim 1, characterized in that: A plurality of process columns are arranged at intervals on the bottom surface of the strip-shaped part, and an avoidance groove for avoiding the process columns is provided on the bearing surface.

4. The strip-shaped parts pitch-changing fixture according to claim 3, characterized in that: A limiting block is installed in the avoidance groove, a limiting groove is provided on the limiting block, and part or all of the process columns are located in the limiting groove to limit the strip-shaped part in the second direction.

5. A double-station automatic distance-changing mechanism for strip parts, characterized in that: The double-station automatic distance-changing mechanism for strip-shaped parts comprises a base, wherein: Two variable-distance stations are arranged in parallel on the base in the second direction, at least two guide rods are arranged on the base, and a plurality of strip-shaped part variable-distance jigs as claimed in any one of claims 2 to 4 are arranged on each variable-distance station, a strip-shaped part is fixed on each variable-distance jig, each assembly hole corresponds to a guide rod, and the strip-shaped part variable-distance jig can be reciprocatingly slidably mounted on the guide rod along the second direction through the assembly hole, and two adjacent strip-shaped part variable-distance jigs on each variable-distance station are connected by a transmission assembly, and the plurality of strip-shaped part variable-distance jigs on each variable-distance station include an active variable-distance jig, and the active variable-distance jig corresponds to the outermost strip-shaped part variable-distance jig on the variable-distance station; The two adjacent strip-shaped parts pitch-changing jigs on the two pitch-changing stations are connected by a connecting piece, and a positioning block is provided between the two pitch-changing stations; A first driving member is provided on each of the variable distance stations, a fixed end of the first driving member is connected to the corresponding variable distance station, a driving end of the first driving member is connected to the active variable distance fixture on the corresponding variable distance station, and the first driving member is configured to drive the active variable distance fixture on the corresponding variable distance station to move back and forth along the second direction, so as to drive the plurality of variable distance fixtures of the strip parts on the corresponding variable distance station to be separated in sequence or closely merged in sequence according to a preset spacing.

6. The double-station automatic distance-changing mechanism for strip-shaped parts according to claim 5 is characterized in that: The double-station automatic pitch-changing mechanism for strip-shaped parts further comprises a second driving member, which is arranged on the outer side of the base in the second direction, and comprises an unlocking cylinder and an unlocking member, wherein the fixed end of the unlocking cylinder is mounted on the base, the driving end of the unlocking cylinder is connected to the unlocking member, and the unlocking cylinder is configured to drive the unlocking member to reciprocate along the first direction; The unlocking member is provided with a T-shaped slot extending along the second direction, the end of the operating rod is provided with a T-shaped head, and the T-shaped heads of the operating rods of all the bar-shaped parts pitch-changing jigs on the two pitch-changing stations are inserted into the T-shaped slot; When unlocking, the unlocking cylinder drives the unlocking member to move away from the base in the first direction, so as to pull the operating rods of all the strip part pitch changing jigs outward through the unlocking member, thereby loosening the strip parts on all the strip part pitch changing jigs on the two pitch changing stations.

7. The double-station automatic distance-changing mechanism for strip-shaped parts according to claim 5, characterized in that: The transmission assembly includes a transmission plate and a limit pin, the transmission plate is fixed on a first pitch-changing jig, the limit pin is fixed on a second pitch-changing jig, the first pitch-changing jig and the second pitch-changing jig are two adjacent strip-shaped part pitch-changing jigs, the transmission plate is provided with a waist-shaped hole extending along the second direction, the limit pin is located in the waist-shaped hole, and the length of each waist-shaped hole on the transmission plate is the same.

8. The double-station automatic distance-changing mechanism for strip-shaped parts according to claim 7 is characterized in that: The first variable pitch jig and the second variable pitch jig are both provided with two assembly holes, and guide sleeves are installed in the assembly holes of the first variable pitch jig and the second variable pitch jig. The guide rods are provided with two groups, and each group of guide rods includes two guide rods, wherein the first group of guide rods is located above the second group of guide rods, and the spacing between the first group of guide rods located above is smaller than the spacing between the second group of guide rods located below; The first variable-distance jig is installed on a group of guide rods located above through a guide sleeve, and the second variable-distance jig is installed on a group of guide rods located below through a guide sleeve. The jig body of the second variable-distance jig is also provided with avoidance holes for the group of guide rods located above to pass through.

9. The double-station automatic distance-changing mechanism for strip-shaped parts according to claim 5, characterized in that: The two variable-distance stations share the positioning block, and a gap is formed between the two variable-distance stations through the positioning block, which is convenient for a handling mechanism to simultaneously take and place the strip-shaped parts on the two variable-distance stations.

10. The double-station automatic distance-changing mechanism for strip-shaped parts according to claim 5, characterized in that: The base includes a base plate and two vertical plates, the vertical plates are fixed on both ends of the base plate at intervals along the second direction, the two ends of the guide rod are respectively fixedly connected to the two vertical plates, the fixed end of the first driving member is connected to the base plate and is located below the guide rod, and detection devices are installed on the two vertical plates, and the detection devices are configured to detect whether there are strip parts on the corresponding variable distance workstation.

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